42021821 is an odd 8-digits composite number following 42021820
and preceding 42021822 . In scientific notation, it is written as 4.2021821 × 10^7.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 41345712 positive integers (up to 42021821) that are relatively prime to 42021821.
42021821 has 8 divisors, whose sum is 42702240
The reverse of 42021821 is 12812024
Previous prime number is 283
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
forty-two million twenty-one thousand eight hundred twenty-one
Scientific notation
4.2021821 × 10^7
Engineering notation
4.2021821 × 10^6
Prime Factorization
83 × 283 × 1789
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
42021821
Product of the distinct prime numbers
The prime factorization of 42021821 is 83 × 283 × 1789.
Since it has a total of 3 prime factors.
9 , 1 , 44 , 60 , 37 , 776 , 8548 , 2787 , 36602 , 8318 , 243440 , 1567 , 3205756 , 9536595 , 69692028 , 30142842 , 665058509 , 422794836 , 377808922 , 5863930281
n×2
84043642
n×3
126065463
n×4
168087284
n×5
210109105
n÷2
21010910.5
n÷3
14007273.666667
n÷3
10505455.25
n÷5
8404364.2
n2
1765833440156041
n3
7.4203536738051E+22
n4
3.1181677383733E+30
n5
1.310310865499E+38
2 √n
6482.4240064963
3 √n
347.66285277852
4 √n
80.513502013615
5 √n
33.473025910673
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-42021820
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 42021821 can be divided by 8 positive divisors.
The sum of these divisors (counting 42021821) is 1, the average is 0.125.
Base
System
Value
2
Binary
10100000010011001110111101
3
Ternary
2221001221002202
4
Quaternary
2200103032331
5
Quinary
41224144241
6
Senary
4100401245
8
Octal
240231675
10
Decimal
42021821
12
Duodecimal
120a6225
16
Hexadecimal
28133bd
20
Vigesimal
d2ceb1
36
Base36
p0o8t
md5
5145bf06b4fd8fc9235d0073ca86a496
sha1
30a4d5b227d0aa7e0892aab5b524174f0a10bf03
sha256
240cd642f4aaefcbd8f9a13a786326df558f332e22c294229e335be437271515
sha512
69895237050c5c950491d3da193036952d1733d49334a24a0ad17db4afe353402d3f62eb409040b91d01165d8a9cfb0c1fa75acb4129a03814ff9cdf1042bc04
ripemd-160
405cbbb552a27f41f9e417cee92c790c3120efcc
Diameter
84043642
Circumference
264030888.28813
Area
5.5475293630574E+15
Volume
3.1082304784886E+23
Surface area
2.219011745223E+16
Circumference
264030888.28813
Perimeter
168087284
Area
1765833440156041
Diagonal
59427829.173815
Surface area
10595000640936246
Volume
7.4203536738051E+22
Space diagonal
72783928.998565
Perimeter
126065463
Area
7.646283090136E+14
Altitude
36391964.499282
Surface area
7.646283090136E+14
Volume
8.7449706692502E+21
Height
19809276.391272